Our Data Sources
29, Pentwyn Avenue, Mountain Ash has no recent1 records in the Land Registry and a single entry in the EPC database dated September 2025.
We combine this information with public data of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 29, Pentwyn Avenue, Mountain Ash, we estimate a market value of £84,818 and a rental value of £607 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £75,124 and £538 per month respectively.
Plot Size
HM Land Registry records the plot of land for 29, Pentwyn Avenue, Mountain Ash as measuring 155 m2.
That makes it the 23rd largest plot in the postcode, where 63 of the 66 other houses have recorded plot data.
Energy Efficiency
29, Pentwyn Avenue, Mountain Ash has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 02 Sep 2025.
The property is connected to mains gas and has mostly double glazing. It is heated using a boiler and radiators (mains gas).
Sold Prices
The most recent sale of 29, Pentwyn Avenue, Mountain Ash completed on 12th March 2004 at £28,950 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold twice.
- Sold Mar 2004£28,950
- Sold Nov 2002£15,500
Similar Properties Sold Nearby
Since 2014 77 properties similar to 29, Pentwyn Avenue, Mountain Ash have sold within a radius of 1.4 kilometres, per the Land Registry and our network of Estate Agents.
The latest, on the 12th June 2026, was 206, Bryntirion, Mountain Ash, CF45 4EJ, a freehold house which sold for £80,000.
Read more about house prices in CF45.
- Sold Jun 2026£80,000 | 3 Bed House206, Bryntirion, Mountain Ash, CF45 4EJ206, Bryntirion, Mountain Ash, CF45 4EJ
- Sold Dec 2025£82,950 | 3 Bed House96, Bryntirion, Mountain Ash, CF45 4EX96, Bryntirion, Mountain Ash, CF45 4EX
- Sold Nov 2025£88,000 | 3 Bed House134, Bryntirion, Mountain Ash, CF45 4EX134, Bryntirion, Mountain Ash, CF45 4EX
- Sold Oct 2025£60,500 | 3 Bed House123, Pentwyn Avenue, Mountain Ash, CF45 4YE123, Pentwyn Avenue, Mountain Ash, CF45 4YE
- Sold Aug 2025£83,000 | 3 Bed House90, Bryntirion, Mountain Ash, CF45 4EX90, Bryntirion, Mountain Ash, CF45 4EX
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £98,766, ranging from £79,186 to £141,832.
- 31 Pentwyn Avenue
5 Bed House | 4 m | Est. Value: £139,750
- 33 Pentwyn Avenue
3 Bed House | 10 m | Est. Value: £83,683
- 25 Pentwyn Avenue
3 Bed House | 11 m | Est. Value: £88,041
- 35 Pentwyn Avenue
3 Bed House | 15 m | Est. Value: £79,186
- 23 Pentwyn Avenue
3 Bed House | 17 m | Est. Value: £88,782
Location Comparison
Of the 111 addresses on Pentwyn Avenue, Mountain Ash, CF45, 29, Pentwyn Avenue, Mountain Ash comes out as the 89th largest and the 100th most expensive in our analysis of the public data.
It is also £82k less expensive than the average property across the CF45 district.
More reading links
Schools Nearby
Public Transport Nearby
- Penrhiwceiber|1.0 km away
- Quakers Yard|2.2 km away
- Abercynon|2.7 km away
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.
